Policy. Science. Business.

EMISSIONS

The Amazon rainforest is one of the globe's most important carbon sinks. But over the past several years, ongoing research has raised concerns that future droughts could tip off a shift in the "lungs in the planet," causing them to exhale more carbon dioxide than they inhale.

Call it a choice between "Black Panther" and blackouts in the rollout of super-fast 5G internet technology. America's tech titans are lined up against electric utilities in a noisy fight for control of wireless spectrum power companies say is critical for communications if a natural disaster darkens a city or hackers breach the grid.

Call it a choice between "Black Panther" and blackouts in the rollout of super-fast 5G internet technology. America's tech titans are lined up against electric utilities in a noisy fight for control of wireless spectrum power companies say is critical for communications if a natural disaster darkens a city or hackers breach the grid.